Numbers 35:17-19

Revised Standard Version Catholic Edition

¹⁷ And if he struck him down with a stone in the hand, by which a man may die, and he died, he is a murderer; the murderer shall be put to death. ¹⁸ Or if he struck him down with a weapon of wood in the hand, by which a man may die, and he died, he is a murderer; the murderer shall be put to death. ¹⁹ The avenger of blood shall himself put the murderer to death; when he meets him, he shall put him to death.